EDAC/altera: Fix use-after-free in error paths

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98932
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-23 13:17:14 UTC
Updated2026-10-24 14:16:48 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: EDAC/altera: Fix use-after-free in error paths In both altr_edac_a10_device_add() and altr_portb_setup(), the error path freed the dci structure before releasing the devres group. Since the managed single and double bit IRQ handlers use altdev(dci->pvt_info) as their data, an IRQ firing between freeing dci and unregistering the IRQs could dereference the freed memory. Release the devres group first so the managed IRQs are unregistered before the dci structure is freed.

Risk And Classification

Primary CVSS: v3.1 7.4 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.4HIGHCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.4HIGHCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 588cb03ea208b303e6dee7e916f329043fd0fc26 865f3bdebbc9b34012358c377c9b15154f95f33b git Not specified
CNA Linux Linux affected 588cb03ea208b303e6dee7e916f329043fd0fc26 87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbba git Not specified
CNA Linux Linux affected 588cb03ea208b303e6dee7e916f329043fd0fc26 eef3b67f9c6782127163b631c9043011a68016e2 git Not specified
CNA Linux Linux affected 4.7 Not specified
CNA Linux Linux unaffected 4.7 semver Not specified
CNA Linux Linux unaffected 6.18.56 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.10 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/865f3bdebbc9b34012358c377c9b15154f95f33b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/eef3b67f9c6782127163b631c9043011a68016e2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbba 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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